Allyson Felix is growing her family! ❤️ The retired Olympian and husband Kenneth Ferguson are expecting their second baby, the couple revealed on Instagram Friday. "Thanksgiving blessings! Adding a little more love to our family.🤰🏽🍼#PartyofFour #BabyOnBoard," she captioned the post. Tap the link in bio for the full announcement. l 📷: Steph Chambers/Getty